CN113847810B - Low-noise air-cooled heat dissipation device - Google Patents
Low-noise air-cooled heat dissipation device Download PDFInfo
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- CN113847810B CN113847810B CN202111179299.8A CN202111179299A CN113847810B CN 113847810 B CN113847810 B CN 113847810B CN 202111179299 A CN202111179299 A CN 202111179299A CN 113847810 B CN113847810 B CN 113847810B
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- 230000017525 heat dissipation Effects 0.000 title description 16
- 230000030279 gene silencing Effects 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims description 25
- 239000011358 absorbing material Substances 0.000 claims description 10
- 210000001503 joint Anatomy 0.000 claims 2
- 230000001603 reducing effect Effects 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 7
- 235000017491 Bambusa tulda Nutrition 0.000 description 7
- 241001330002 Bambuseae Species 0.000 description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 7
- 239000011425 bamboo Substances 0.000 description 7
- 230000009467 reduction Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 241000411851 herbal medicine Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/38—Arrangements of cooling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/36—Arrangements of air or gas supply devices
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention relates to a low-noise air-cooled heat dissipating device which comprises a fan, an air inlet channel and an air outlet channel, wherein the air inlet channel is arranged into a labyrinth type air channel, the outlet end of the air inlet channel is communicated with the inlet end of the fan, the air outlet channel comprises a silencing cylinder, a guide cylinder and a horn mouth, one end of the silencing cylinder is communicated with the outlet end of the fan, the other end of the silencing cylinder is connected with the guide cylinder, a plurality of spherical cavities are arranged on the side wall of the silencing cylinder, the cavities are communicated with the silencing cylinder through holes, the aperture of the through holes is smaller than the inner diameter of the cavities, the guide cylinder is connected between the silencing cylinder and the horn mouth, the inner diameter of the guide cylinder is larger than the inner diameter of the silencing cylinder, and a movable guide assembly is arranged in the guide cylinder. According to the invention, the inlet and the outlet of the fan are respectively provided with the air inlet channel and the air outlet channel with silencing and noise reducing effects, so that the pneumatic noise emitted by high-speed gas is reduced.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a low-noise air-cooling heat dissipation device.
Background
The rotary kiln is a mechanical equipment used in cement production, metallurgy, chinese herbal medicine drying and other industries, and generally comprises a barrel, a transmission device, a supporting and retaining wheel supporting device, a kiln liner, a kiln tail seal, a kiln head, a fuel device and other parts. In the working process of the rotary kiln, the self heat of the kiln body can rapidly rise, and at the moment, an external heat dissipation assembly is required to dissipate heat, and the existing heat dissipation mode comprises water cooling and air cooling. The kiln body is not corroded by air cooling heat dissipation, and the method is a heat dissipation method widely adopted by manufacturers. When the rotary kiln body is subjected to air cooling and heat dissipation, the air duct can emit booming noise due to the fact that the air flow speed in the air duct is high, and the like, and physical and mental health of on-site workers is hurt, so that the existing air cooling and heat dissipation assembly is required to be subjected to noise reduction design.
Disclosure of Invention
Based on this, it is necessary to provide a low-noise air-cooled heat dissipating apparatus against the situation that the noise of the existing heat dissipating assembly for rotary kiln is large and the physical and psychological health of operators is affected.
The utility model provides a low noise forced air cooling heat abstractor, includes the fan, air inlet passageway and air-out passageway, air inlet passageway sets up to labyrinth wind channel, air inlet passageway's exit end with the entry end intercommunication of fan, the air-out passageway includes the sound-damping section of thick bamboo, guide cylinder and horn mouth, sound-damping section of thick bamboo one end with the exit end intercommunication of fan, the sound-damping section of thick bamboo other end with the guide cylinder is connected, be provided with a plurality of spherical cavitys that are on the sound-damping section of thick bamboo lateral wall, the cavity pass through the through-hole with the sound-damping section of thick bamboo intercommunication, the aperture of through-hole is less than the internal diameter of cavity, the guide cylinder is connected the sound-damping section of thick bamboo with between the horn mouth, the internal diameter of guide cylinder is greater than the internal diameter of sound-damping section of thick bamboo, be provided with movable water conservancy diversion subassembly in the guide cylinder.
Preferably, a sound absorbing material is further arranged in the guide cylinder, and the sound absorbing material is positioned on one side of the guide assembly adjacent to the silencing cylinder.
Preferably, the guide assembly comprises guide plates, a cross rod and a connecting rod, wherein a plurality of guide plates are arranged between the two cross rods at parallel intervals, one end of the connecting rod is connected with the cross rod, and the other end of the connecting rod is movably connected with the side wall of the guide cylinder through a sealing bearing.
Preferably, the number of the diversion assemblies is three.
Preferably, a plurality of resonance plates are arranged in the air inlet channel, a plurality of pipe holes are formed in the side wall of the air inlet channel, a resonance shell is sleeved outside the air inlet channel, and the resonance shell is communicated with the pipe holes.
Preferably, the resonance piece comprises a support rod and a U-shaped elastic piece, one end of the support rod is connected with the inner side wall of the air inlet channel, and the other end of the support rod is connected with the closed end of the U-shaped elastic piece.
Preferably, the resonance housing comprises an outer housing body and two movable plates, the outer housing body is hollow and sleeved on the outer side of the air inlet channel, the two movable plates are installed in the outer housing body, the outer sides of the movable plates are abutted to the inner wall of the outer housing body, the inner sides of the movable plates are abutted to the air inlet channel, electromagnets are arranged on the adjacent sides of the movable plates, and the adjacent sides of the movable plates are connected through springs.
Preferably, a plurality of fins are arranged on one side of the horn mouth, which is away from the guide cylinder, and the fins are arranged at intervals along the air flow direction.
Preferably, micropores are formed in the fins.
Preferably, the sound absorbing material is a porous sponge.
The invention has the advantages that: 1. the air inlet channel is designed as a labyrinth, so that the wind speed and potential energy thereof are reduced, and the noise of the high-speed air inlet gas in the air inlet channel is reduced; 2. the air outlet channel of the fan is of a three-section straight cylinder design, the wind resistance is low, the impedance to the air outlet wind speed is low, high-speed gas blows on the surface of the kiln body to take away heat, the heat dissipation effect is good, and the inner wall of the silencing cylinder is provided with a plurality of spherical cavities, so that the sound wave noise generated by the high-speed gas is effectively absorbed, and the noise of an air outlet is reduced; 3. the inner diameter of the guide cylinder is larger than that of the silencing cylinder, the capacity is increased, the heat dissipation area of the kiln body is increased, the air outlet speed is properly reduced, and the pneumatic noise is reduced; 4. the guide assembly is arranged in the guide cylinder, the air flow direction of the air outlet is adjusted, air cooling and heat dissipation are carried out on the part of the kiln body, and the heat dissipation effect is improved.
Drawings
FIG. 1 is a schematic perspective view of a low noise air-cooled heat sink according to one embodiment;
FIG. 2 is a schematic top view of a low noise air-cooled heat sink;
FIG. 3 is a schematic view of the structure of the air inlet channel;
fig. 4 is a schematic view of an air outlet channel structure.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-4, a low-noise air-cooled heat dissipating device comprises a fan 1, an air inlet channel 2 and an air outlet channel 3, wherein the air inlet channel 2 is a labyrinth air channel, the outlet end of the air inlet channel 2 is communicated with the inlet end of the fan 1, the air outlet channel 3 comprises a silencing barrel 31, a guide barrel 32 and a horn mouth 33, one end of the silencing barrel 31 is communicated with the outlet end of the fan 1, the other end of the silencing barrel 31 is connected with the guide barrel 32, a plurality of spherical cavities 311 are formed in the side wall of the silencing barrel 31, the cavities 311 are communicated with the silencing barrel 31 through holes 312, the hole diameters of the through holes 312 are smaller than the inner diameters of the cavities 311, the guide barrel 32 is connected between the silencing barrel 31 and the horn mouth 33, the inner diameters of the guide barrel 32 are larger than the inner diameters of the silencing barrel 31, and movable guide assemblies 4 are arranged in the guide barrel 32. Specifically, in this embodiment, during the use, install fan 1 in rotary kiln body (not shown in the figure) below, fan 1 dustcoat sound-proof housing keeps apart the buzzing that fan 1's motor sent, adds in fan 1's income wind gap department and is equipped with air inlet channel 2, and air inlet channel 2 is the labyrinth wind channel of design, avoids external air current to directly irritate and gets into fan 1 entry, and resistance is eliminated, reduces the gas velocity of flow, and then reduces the pneumatic noise of air current. It should be noted that, the barrier board in the labyrinth air duct is a sound absorption barrier board, so that sound waves bypass from one small chamber to another small chamber, the sound absorption effect is increased, and the labyrinth air duct is particularly suitable for a low-frequency noise range generated by airflow. Further, the air outlet channel 3 is of a three-section design and comprises a silencing cylinder 31, a guide cylinder 32 and a horn mouth 33, the air outlet channel 3 is of a straight cylinder type design, the resistance to high-speed air flow after the fan 1 is pressurized is small, the high-speed air flow blows on the surface of a running kiln body, heat is taken away, and the high air cooling and heat dissipation efficiency is ensured. When high-speed gas flows through the silencing barrel 31, pneumatic noise is generated, a plurality of cavities 311 are formed in the side wall of the silencing barrel 31, the cavities 311 are communicated with the silencing barrel 31 through holes 312, sound waves of the pneumatic noise enter the cavities 311 through the through holes 312, sound wave energy is consumed in the cavities 311, and the design purpose of converting sound energy into heat energy is achieved. The aperture of the through hole 312 is designed to be smaller than the inner diameter of the cavity 311, and the purpose of narrowing the aperture of the through hole 312 is to filter sound waves having a short wavelength, and the wavelength=wave speed/frequency is generally 340 m/s according to the wavelength formula. The shorter the wavelength, the higher the frequency, and the sound heard by the human ear has a wavelength of 0.017-17 meters, frequency range: the sound wave is 20 HZ-20 KHZ, the higher the frequency of the sound wave is, the more sharp and the harsher the sound is heard, because the high-speed gas is sprayed out from the outlet of the fan 1, because the flow speed is high, the pneumatic noise is sharp, the through hole 312 is designed on the side wall of the silencing barrel 31, the influence on the flow speed of the air flow is small, and the noise reduction effect is good. The air outlet end of the silencing cylinder 31 is provided with the guide cylinder 32, the inner diameter of the guide cylinder 32 is larger than that of the silencing cylinder 31, the cross section is increased, so that the flow rate of gas entering the guide cylinder 32 is reduced, noise emitted by the gas entering the guide cylinder 32 is reduced, the guide assembly 4 is arranged in the guide cylinder 32, the air flow is split by the guide assembly 4, the air cooling is conveniently adjusted to be in a dispersed air cooling mode according to the rotation speed of the kiln body, the air cooling effect of the kiln body is better due to the three modes of concentrated air cooling or direct blowing air cooling. The end of the guide cylinder 32 is provided with a flare 33, the flare 33 is used for converging air flow, the air flow is prevented from flowing out of the guide cylinder 32 and directly overflows in all directions, and the kiln body above the guide cylinder 32 cannot be subjected to concentrated air cooling.
As shown in fig. 4, a sound absorbing material 322 is further disposed in the guide shell 32, and the sound absorbing material 322 is located on a side of the guide assembly 4 adjacent to the sound damping shell 31. Specifically, a sound absorbing material 322 is disposed in the guide cylinder 32, and sound absorption and noise reduction treatment is performed on the air flow entering the guide cylinder 32. Specifically, the sound absorbing material 322 is a porous sponge, and the resistance of the porous sponge to the air flow is small, so that the air flow can pass smoothly, the pneumatic noise sound wave generated by the air flow is converted into heat energy in the porous sponge to be consumed, and the noise emitted by the air outlet channel 3 is further reduced.
As shown in fig. 1-2, the flow guiding assembly 4 includes flow guiding sheets 41, a cross rod 42 and a connecting rod 43, wherein a plurality of flow guiding sheets 41 are arranged between the two cross rods 42 at parallel intervals, one end of the connecting rod 43 is connected with the cross rod 42, and the other end of the connecting rod 43 is movably connected with the side wall of the flow guiding cylinder 32 through a sealing bearing. Specifically, in this embodiment, during use, an operator manually rotates or directly uses a motor to drive the connecting rod 43 to rotate, and then drives the corresponding flow guide plates 41 to incline, when the flow guide plates 41 incline towards the same direction, the flow direction of the air passing through the flow guide plates 41 changes, and then the air cooling in three modes of dispersing air cooling, concentrating air cooling or direct blowing air cooling is realized. When the kiln body speed is lower than the first threshold value, a dispersion air cooling mode is adopted, namely the directions of the guide vanes 41 positioned at the edge are mutually deviated, the air flow is blown on the surface of the kiln body in a V shape, and the contact area of the air and the kiln body is increased, so that the heat dissipation area is wider; when the kiln body speed is higher than the second threshold value, concentrated air cooling is adopted, namely the directions of the guide plates 41 positioned at the edge are mutually close, air flow is concentrated to form a beam shape and blown on the surface of the kiln body, and the bottom of the kiln body is subjected to concentrated air cooling, so that the heat dissipation effect is excellent; when the kiln body speed is between the first threshold value and the second threshold value, direct blowing type air cooling is adopted, namely, all the guide vanes 41 are adjusted to be in a vertical state, so that the gas passing through the guide vanes 41 is blown on the surface of the kiln body vertically.
Specifically, the number of the diversion assemblies 4 is three. The three groups of flow guide components 4 are not interfered with each other, so that an operator can conveniently manually or automatically adjust the direction of the flow guide sheets 41 in each group of flow guide components 4 to match the rotation speed of the kiln body.
As shown in fig. 3, a plurality of resonance plates 21 are disposed in the air inlet channel 2, a plurality of tube holes 22 are disposed on the side wall of the air inlet channel 2, a resonance housing 23 is sleeved outside the air inlet channel 2, and the resonance housing 23 is communicated with the tube holes 22. Specifically, when the frequency of the sound wave generated by the high-speed gas flow is the same as the natural frequency of the resonator plate 21, a resonance phenomenon occurs, the amplitude of the resonator plate 21 reaches the maximum, the reciprocating speed of the gas column in the pipe hole 22 is the maximum, the friction loss is the maximum, and the absorbed sound energy also reaches the maximum.
As shown in fig. 3, the resonant piece 21 includes a supporting rod 221 and a U-shaped elastic piece 222, one end of the supporting rod 221 is connected with the inner side wall of the air inlet channel 2, and the other end of the supporting rod 221 is connected with the closed end of the U-shaped elastic piece 222. Specifically, in this embodiment, the U-shaped elastic piece 222 is a thin steel sheet, and when the air flow flows at a high speed in the labyrinth air duct, the sound wave causes the U-shaped elastic piece 222 to vibrate, so that part of the sound energy is converted into heat energy to be dissipated, and noise is attenuated.
As shown in fig. 3, the resonance housing 23 includes an outer housing 231 and two movable plates 232, the outer housing 231 is hollow and sleeved on the outer side of the air inlet channel 2, the two movable plates 232 are installed in the outer housing 231, the outer sides of the movable plates 232 are abutted to the inner wall of the outer housing 231, the inner sides of the movable plates 232 are abutted to the air inlet channel 2, electromagnets 2321 are arranged on adjacent sides of the movable plates 232, and adjacent sides of the movable plates 232 are connected through springs 2322. Specifically, when two movable plates 232 are arranged on adjacent sides of the two movable plates 232, the electromagnets 2321 are mutually magnetically attracted and close, the springs 2322 are compressed, the volume of the resonance cavity between the two movable plates 232 is reduced, the volume of the resonance cavity at two sides is increased, the volume of the resonance cavity can be changed according to the flow velocity of gas in the air inlet channel 2, the matching is facilitated, the noise with different frequencies generated by the gas with the flow velocity and the flow direction is changed due to the labyrinth type air channel, and the silencing effect is better. It should be noted that, in order to measure and calculate the air flow rate in the air intake channel 2, an air speed sensor is disposed in the air intake channel 2, and the air flow rates of different sections are obtained by using the air speed sensor, so that the background controller can conveniently adjust the input current of the electromagnet 2321, control the interval between the two movable plates 232, and regulate and control the volume of the three resonant cavities. It should be noted that, in order to limit the movement range of the movable plate 232, a stop block may be disposed on the inner sidewall of the resonant housing 23, so as to avoid the acoustic wave energy that is transmitted from the digestive tube hole 22 and is not well transmitted from the resonant cavity due to the failure of the spring 2322 or other reasons.
As shown in fig. 1, 2 and 4, a plurality of fins 331 are disposed on a side of the bell mouth 33 facing away from the guide cylinder 32, and the fins 331 are disposed at intervals along the air flow direction. Specifically, set up fin 331 in horn mouth 33 department, because fin 331 is close to the kiln body, the heat thermal radiation on the kiln body gives horn mouth 33 for horn mouth 33 self temperature rises, sets up fin 331, improves horn mouth 33's heat radiating area, and the cooling effect is better.
As shown in fig. 1, 2 and 4, the fins 331 are provided with micropores 3311. Specifically, micropores 3311 are arranged on the fins 331 to absorb sound waves generated by the air flow at the air outlet, so that the noise reduction effect is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (7)
1. A low noise forced air cooling heat abstractor, its characterized in that: the novel air inlet device comprises a fan, an air inlet channel and an air outlet channel, wherein the air inlet channel is arranged into a labyrinth type air channel, the outlet end of the air inlet channel is communicated with the inlet end of the fan, the air outlet channel comprises a silencing cylinder, a guide cylinder and a horn mouth, one end of the silencing cylinder is communicated with the outlet end of the fan, the other end of the silencing cylinder is connected with the guide cylinder, a plurality of spherical cavities are formed in the side wall of the silencing cylinder, the cavities are communicated with the silencing cylinder through holes, the aperture of the through holes is smaller than the inner diameter of the cavities, the guide cylinder is connected between the silencing cylinder and the horn mouth, the inner diameter of the guide cylinder is larger than the inner diameter of the silencing cylinder, a movable guide cylinder is arranged in the guide cylinder, a sound absorbing material is further arranged in the guide cylinder, the sound absorbing material is arranged on one side of the guide cylinder adjacent to the guide cylinder, the guide cylinder comprises guide plates, the guide plates are parallel to each other at intervals and are arranged between the two guide rods, one end of the guide rods is connected with the other through the cross rods, the other end of the guide cylinder is connected with the side wall of the resonant cylinder through a plurality of pipe holes, the resonant cylinders are connected with the resonant cylinders, and the air inlet channel is arranged in the resonant casing, and the air inlet channel is arranged on the side wall.
2. A low noise air-cooled heat sink as defined in claim 1, wherein: the number of the flow guide components is three.
3. A low noise air-cooled heat sink as defined in claim 1, wherein: the resonance piece comprises a supporting rod and a U-shaped elastic piece, one end of the supporting rod is connected with the inner side wall of the air inlet channel, and the other end of the supporting rod is connected with the closed end of the U-shaped elastic piece.
4. A low noise air-cooled heat sink as defined in claim 3, wherein: the resonance shell comprises an outer shell body and two movable plates, the outer shell body is hollow and sleeved on the outer side of the air inlet channel, the two movable plates are installed in the outer shell body, the outer sides of the movable plates are in butt joint with the inner wall of the outer shell body, the inner sides of the movable plates are in butt joint with the air inlet channel, electromagnets are arranged on the adjacent sides of the movable plates, and the adjacent sides of the movable plates are connected through springs.
5. A low noise air-cooled heat sink as defined in claim 1, wherein: one side of the horn mouth, which is away from the guide cylinder, is provided with a plurality of fins, and the fins are arranged at intervals along the air flow direction.
6. A low noise air-cooled heat sink as defined in claim 5, wherein: and micropores are arranged on the fins.
7. A low noise air-cooled heat sink as defined in claim 1, wherein: the sound absorbing material is a porous sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111179299.8A CN113847810B (en) | 2021-10-11 | 2021-10-11 | Low-noise air-cooled heat dissipation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111179299.8A CN113847810B (en) | 2021-10-11 | 2021-10-11 | Low-noise air-cooled heat dissipation device |
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| Publication Number | Publication Date |
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| CN113847810A CN113847810A (en) | 2021-12-28 |
| CN113847810B true CN113847810B (en) | 2024-03-08 |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5230617A (en) * | 1991-09-25 | 1993-07-27 | Klein Ernst G | Furnace shell cooling system |
| CN2627260Y (en) * | 2003-06-02 | 2004-07-21 | 四川省简阳空冷器制造有限公司 | Low noise air cooler |
| JP2006041455A (en) * | 2004-07-23 | 2006-02-09 | Giga-Byte Technology Co Ltd | Heat radiation device and noise reducing method |
| WO2009130891A1 (en) * | 2008-04-22 | 2009-10-29 | 広東松下環境系統有限公司 | Centrifugal fan and method of reducing noise of centrifugal fan |
| WO2011082510A1 (en) * | 2010-01-08 | 2011-07-14 | 中国科学院声学研究所 | Compound sound absorption device with built-in resonant cavity |
| CN203742714U (en) * | 2014-03-11 | 2014-07-30 | 湖北创奇汽车零部件有限公司 | Silencer for reducing wind noise |
| CN204827604U (en) * | 2015-06-16 | 2015-12-02 | 华晨汽车集团控股有限公司 | Multicavity resonant silencer |
| CN107204181A (en) * | 2017-07-26 | 2017-09-26 | 安徽理工大学 | A kind of resonant labyrinth noise reduction method and set composite |
| CN207813638U (en) * | 2017-12-22 | 2018-09-04 | 长安大学 | A kind of tunnel ventilation silencing means based on resistive energy-absorbing |
| CN209875500U (en) * | 2019-03-14 | 2019-12-31 | 杭州老板电器股份有限公司 | Low-noise fan and range hood |
| CN210892664U (en) * | 2019-08-28 | 2020-06-30 | 成都莹鑫晟环保科技有限公司 | Noise control device for rotary kiln body cooling system |
| CN211666948U (en) * | 2019-11-26 | 2020-10-13 | 株洲中车时代电气股份有限公司 | Air duct silencing structure and electrical cabinet |
| CN212563845U (en) * | 2020-06-28 | 2021-02-19 | 成都新仪征环保科技有限公司 | Square intake and exhaust silencer |
| CN212717238U (en) * | 2020-03-04 | 2021-03-16 | 成都莹鑫晟环保科技有限公司 | Low-noise cooling device in rotary kiln |
| CN212838053U (en) * | 2020-08-05 | 2021-03-30 | 襄阳家宏欣利机电设备有限公司 | Cold air flow guiding device for engine fan |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11713904B2 (en) * | 2019-10-01 | 2023-08-01 | Johnson Controls Tyco IP Holdings LLP | Tunable sound attenuating modules |
-
2021
- 2021-10-11 CN CN202111179299.8A patent/CN113847810B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5230617A (en) * | 1991-09-25 | 1993-07-27 | Klein Ernst G | Furnace shell cooling system |
| CN2627260Y (en) * | 2003-06-02 | 2004-07-21 | 四川省简阳空冷器制造有限公司 | Low noise air cooler |
| JP2006041455A (en) * | 2004-07-23 | 2006-02-09 | Giga-Byte Technology Co Ltd | Heat radiation device and noise reducing method |
| WO2009130891A1 (en) * | 2008-04-22 | 2009-10-29 | 広東松下環境系統有限公司 | Centrifugal fan and method of reducing noise of centrifugal fan |
| WO2011082510A1 (en) * | 2010-01-08 | 2011-07-14 | 中国科学院声学研究所 | Compound sound absorption device with built-in resonant cavity |
| CN203742714U (en) * | 2014-03-11 | 2014-07-30 | 湖北创奇汽车零部件有限公司 | Silencer for reducing wind noise |
| CN204827604U (en) * | 2015-06-16 | 2015-12-02 | 华晨汽车集团控股有限公司 | Multicavity resonant silencer |
| CN107204181A (en) * | 2017-07-26 | 2017-09-26 | 安徽理工大学 | A kind of resonant labyrinth noise reduction method and set composite |
| CN207813638U (en) * | 2017-12-22 | 2018-09-04 | 长安大学 | A kind of tunnel ventilation silencing means based on resistive energy-absorbing |
| CN209875500U (en) * | 2019-03-14 | 2019-12-31 | 杭州老板电器股份有限公司 | Low-noise fan and range hood |
| CN210892664U (en) * | 2019-08-28 | 2020-06-30 | 成都莹鑫晟环保科技有限公司 | Noise control device for rotary kiln body cooling system |
| CN211666948U (en) * | 2019-11-26 | 2020-10-13 | 株洲中车时代电气股份有限公司 | Air duct silencing structure and electrical cabinet |
| CN212717238U (en) * | 2020-03-04 | 2021-03-16 | 成都莹鑫晟环保科技有限公司 | Low-noise cooling device in rotary kiln |
| CN212563845U (en) * | 2020-06-28 | 2021-02-19 | 成都新仪征环保科技有限公司 | Square intake and exhaust silencer |
| CN212838053U (en) * | 2020-08-05 | 2021-03-30 | 襄阳家宏欣利机电设备有限公司 | Cold air flow guiding device for engine fan |
Non-Patent Citations (1)
| Title |
|---|
| 风冷式柴油发电机组降噪研究;崔再铎等;《制造业自动化》;第37卷(第3期);145-148 * |
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